Tractor wheel



Dec. 19,1922.

1,439,311 A. J. HIGGS.

TRACTOR WHEEL. FILED MAY 16, 1921.

y i? 5 02 g INVENTOR ArThu Jbrnes H1995 8v @WW MSATTORNEY.

I Ari-"runa- .TAMESHIGGS, or BowM NssoU-"rn AUSTRALIA, ausiraema.

TRACTOR WHEEL.

Application filed Ma ie,

T'Oailw'ho-m-t may concern:

Be it known that ARTHU JAMES times, a sub ect of His Majesty the King of Great Britain, and citlzen of the Commonwealth of Australia, residing at District Road, Bow-'- mans, in the State of South Australia, in the v Commonwealth ofAust-ralia, hath invented certain new and useful Improvements in.

flra'ctor lVheels, ofwhich the following is a specification. v V

I My lnve-ntlon relates to improvements in tractor wheels, the object of the same being to provide a wheel which will not only firmly grip the soil and prevent slipping but will at the same timebe self cleaning, that is to say, it will not readily pick up and accumu- I late a quantity of loose earth.

In constructing my wheel I prefer to use a metal hub and metal spokeswhioh radiate from the centre andare attached at-each side to a metal frame, but the spokes extend be yond the peripheryof the arm, the extended portion being-deflected inwardly to form a base for the treads which consist of a box like construction encaslng a core or cross. plate of strong wood, and each tread so formed is externally provided with an 'outwardly projectingplate which is designed to act as a grip or nonskidding member.

The spokes are preferably arranged in pairs radiating from the centre opposite to each other but the treads instead of being mounted at right angles to the sides of the wheel thus bridging the intervening space between opposite spokes are arranged diago- I nally so that the tread attached to each spoke on oneside of the wheel is attached at its opposite end to the spoke in advance of its fellow on the opposite side of the wheel. I

But in order that/my invention may be clearlyunderstood I will now describe the same by aid of the accompanying illustrative drawings wherein-- Fig. 1 is a side elevation of the wheel.

Fig. 2 is a front view of same.

Fig. 3 is a sectional elevation of the frame of wheel taken vertically through the hub.

Fig. 4 is a side view of the tread, and

Fig. 5 a section of Fig. 4:.

In each of the illustrations similar letters of reference are used to denote similar or corresponding parts-Wherever they occur.

In the drawings a is the hub of the wheel constructed in any suitable manner such for instance as a solidmetal hub or. it may be 1921. Serial NO. 470,142.

a wooden hub provided with 'a metal'we'armg sleeve as indicated at-l). To thehub so formed a series of metal spokes c are attache'd so as to radiate outwardly, the spokes being arranged in pairs on opposite sides of, the wheel and may be secured by the hub )olts .(Zj These spokes are preferably ide flee-ted outwardly from the'hubas clearly indicated in Fig. 3, their extremities being in- .turne'd as shown at e'to form a support for thetread; Rigidity is given to the 'spokes by means of the metal rings *In the construction of mywhee'l I do not use a tyre or band but 1' construct atread frame o'i strong metal which is preferably curved as shown and is se'curedto the inturned extensionse of the spokes-0- and is secured in position by the tread bolts 72;.

andthey are furthermaintained in position Theseframes bridge'the space between the a 1 opposite sides of the wheel but instead of being carried straight across in alignment with the axle they are arranged diagonally as clearly indicated in Fig. 2 of the drawings, and being so arranged they are curved in the manner indicated, the radius of the curve being such as to enable them to 'present a fairly even treadon the surface of the ground when'the wheel is in motion. These curves therefore will require to be varied or adjusted in accordance with the diameterof the wheel and the diagonal pitch or inclination of each tread.

The tread frames are furnished with a gripping fin or nonskidding member j which is preferably formed with angle or T iron and maybe fastened to the frame by the bolts 70. Inside of the tread frame I insert a packing plate of wood Z which affords strength and rigidity to the structure,

the treads and secured by bolts or other means. This however forms no part of'my invention and is not illustrated in the drawings. y

The wheelwhich I have described in the foregoing specification affords an easy and ground'and in addition to being comparatively light and expensive it has the meritof being capable of, cleaning itself that is to continuous tread on the surface of the say the treads do not become clogged up witha continuous band of clay or other adhesive soil as the spaces formed betWeen the treads prevent such accumulation and enable much of the matter Which Would otherwise be picked up and retained to be dropped through the spaces between the various treads. Y I

Having now fully described and ascertained my sa d invention and the manner in which it, is to be performed I declare that What 1 claim is 1. A tractor Wheel comprising a hub, spokes radiating from said hub, a series of tread framesfdesigned to be attached to the outer ends of said spokes and having a space formed therein for the accommodation of packing plates.

2. A- tractor Wheel comprising v a hub,.

spokes radiating from opposite sides ofsaid hubi tread frames designed to be attached.

to the outer ends of said spokes diagonally across the intervening spaces formed by the spokes on opposite sides of said hub,and an arched gripping tin fixed to said plates and projecting outwardly therefrom.

3. A tractor Wheel comprising a hub spokes radiating from opposite sides of said hub, and a series of tread-p1ates arranged spokes radiating from opposite circumferentially on said spokes and being on opposite sides of said hub.

4. A tractor Wheel comprising a hub sides of said hub 'a seriesof tread-plates arranged circumferentially on said spokes and being attached to the spoke ends diagonally across the intervening spaces formed by the spokes on. opposite sides of said hub, and gripping elements fixed diagonally upon said treadplates. i

5. I}. tractor wheel comprising a hub spokes radiating from opposite sides of said huh, and tread-plates attached to spokes on oppositesides oi the Wheel, the tread-plates being curved to conform to the diameteroi? the Wheel and thepitch of the spokes so as to form a substantially, level tread on the surface of the ground during the rotation of the wheel. I

In testimony whereof he hath afiixed his signature in presence of two Witnesses.

ARTHUR JAMES HIGGS.

illtitnesses: I

F RnDnRIoK PELHAM ToLnn-RoWLnY, WALTER HARRY Luxroiu VI GO. 

